Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh trinh » canh tranh, hanh chinh
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
trong dan » trong dang, trong tan, trong ban
trong san » trong cac, cong san, dong san
cua dang » cua cong, cua ban
than cau » toan cau, phan cau, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thiet) or (theo chieu)) tach - hanh trinh cua dang ((trong dan) or (trong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (theo chieu)) tach - hanh trinh cua dang ((trong dan) OR (trong san)) than cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (theo chieu)) tach - hanh trinh cua dang ((trong dan) or (trong san)) than cau*.